Change in coreboot[master]: soc/intel/common: Fix buggy code tries to access DESC region

[Arthur Heymans (Code Review)]

Attention is currently required from: Sridhar Siricilla, Arthur Heymans.
Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63734 )

Change subject: soc/intel/common: Fix buggy code tries to access DESC region
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Patch Set 4:

(1 comment)

Patchset:

PS4:
> SI_DESC is going to be remain in future platforms as well. So, reference to SI_DESC which get defined in the FMAP should be fine , IMO.

The default generated x86 FMAP does not have this. This means that you always need to manually write an FMAP yourself for this feature. Another point is that this pushes problems to the runtime, because there is no buildtime guarantee that this FMAP section will be there.